The Arch Linux DevOps team has announced
that adoption of orphaned packages in the Arch User Repository (AUR)
has been disabled due to "the current influx of malicious package
adoptions and follow-up commits made via the AUR
". Michael Taggart
has posted a brief analysis of the malware being added to a long
list of packages in this round of attacks. The payload appears
to be an remote-access trojan (RAT) that takes commands over the
Tor network and attempts to upload a wide range of user data.
The project had suspended new account registration in June. That followed a campaign in which an attacker or attackers created new accounts to adopt orphaned packages and push malicious updates to them that would install malware on user systems. AUR registration was reopened on July 13 after the DevOps team added some minor, and apparently ineffective, restrictions on creating new accounts.